Fifteen elephants are approaching the Chinese city of Kunming. Altogether the animals     1     (cover) 500km from their habitat in a nature reserve near the borders with Myanmar and Laos. And they are now near     2     city of 6.6 million people. They have travelled along highways     3     through farms over the past few months. And their journey has been attracting the attention of the Chinese public.

Experts are now doing all they can     4     (keep) the elephants away from Kunming city. They are setting up barriers along the way,    5     (hope) to get them to go back towards the nature reserve. No one knows     6     the animals have walked so far away from     7     (they) original habitat. One reason could be a decline in the amount of edible (可食用的) plants in their reserve, especially     8     (supply) of their favourite foods. Another reason could be a rise in numbers in the wild elephant population in the area, from 193 in the 1980s     9     around 300 today. A further     10     (possible) is that the elephants, leader could have led them astray (迷路).

One of China’s wandering elephants has finally made it home.

The herd of wild Asian elephants shot to fame last month while going on     1     impressive journey through southwestern China. Since leaving a nature reserve (保护区) last year, they     2     (travel) more than 500 kilometers (310 miles) across the rugged (崎岖的) landscape of Yunnan province, walking free through fields, villages and large towns.

Last week, a lone (单独的) elephant who broke away     3     the herd a month ago     4     (catch) and returned to its home reserve. It had traveled more than 190 kilometers (118 miles) on     5     (it) own, surviving on food     6     (prepare) by local authorities and at times searching villages for food.

Authorities said the 1. 8-ton male had lingered (逗留) near populated areas and posed a risk to public safety, leading to the     7     (decide) to tranquilize (麻醉) it and send it home. Veterinarians (兽医) found no external injuries on the elephant, who walked into the rainforest and took a bath in the river after being released, the Yunnan government said.

Meanwhile, the rest of the herd is still marching on     8     seems to be an endless journey,    9     (close) monitored round-the-clock by dozens of drones (无人机), and hundreds of emergency response personnel and police     10     (officer).

They say opposites attract; you may find that some of your best     1     (friend) are people who challenge you and offer you different views on life. In fact,     2     same can be true for animals! Countless unlikely animal friendships have been recorded in pictures and on the news.

Anjana, a chimpanzee (黑猩猩) who lives at a US animal reserve, has,     3     the help of her caretaker, raised young animals before. You can see     4     special the relationship between Anjana and these baby tigers is. The chimpanzee is gentle, caring, and seems     5     (take) pleasure out of caring for and playing with the baby tigers. Chimpanzees are an intelligent, social species, who are used to     6     (live) in communities and watching out for each other.

When we think of animal relationships, we often think of those between humans and animals, but the     7     (important) relationship in the lives of most animals     8     (be) with other creatures. Not all species get along, but it's     9     (wonder) to see how one species can protect and care for another under certain special conditions. Anjana may not have spent     10     (she) whole life together with the baby tigers, but during her time with them she provided much needed comfort, friendships, and love.

The planet is facing a crisis. Overuse of resources, like fossil fuels,     1     (combine) with high levels of consumption of goods and the resources needed to make them, is taking our environment to a     2     (break)point.

We live in a disposable culture where we want to keep up     3     the latest trends, but at what cost? Forests     4     (cut) down and minerals mined for objects that will be used for a short amount of time and then thrown away.

Our consumption habits have a direct impact on the planet that we live on, and the lives in different parts of the world. Unsustainable     5     (consume) and production of material goods and food products leads to climate change, which in turn     6     (affect) countries in poverty.

Those methods are     7     (serious)damaging the environment. If we continue     8     (produce) and consume at current rates, using the same methods we will also be affected and it will lead to destructive consequences,for parts of the world already feeling the effects of climate change.

Although we may be from different countries, speak different languages     9     have different cultures, the planet does not recognize the differences we see in each other. Something     10     happens in one part of the world can have great effect on another part of the world many miles away from the event.

Mount Qomolangma, the world's highest mountain, is many things to many people. Adventure seekers and     1     （profession）climbers climb the mountain, again and again,       2     (consider) it to be an achievement. It     3     (report) that 2019 saw more than 60,000 people visit it. Imagine the amount of garbage that must have been collected.

A new gallery in Nepal is going to showcase artwork made from the garbage     4     has been removed from the mountain. The Sagarmatha Next Center, a visitors' center next to the base camp, will be hosting the gallery as a way     5     (draw) attention to the large amount of garbage left there.

Artists will create artwork using the garbage that the climbers often leave behind, including     6     (use) oxygen bottles, torn tents, ropes, broken ladders, cans and plastic wrappers. They will also teach locals how to turn it into     7     (piece) of art.

“We want to showcase how you can transform waste to precious art     8     provide employment and income,” Project director Tommy Gustafsson said. “We hope to change people's opinions about the garbage and manage it," he added.

The gallery is set to have a "soft opening" for locals in the spring. It     9     (display) artwork to raise environmental awareness and sell souvenirs. The money     10     the sale will go to conservation in the area, Gustafsson said.